Injecting IFilteredStream instance into SignalR Hub using Autofac

I know that under the hood the Tweetinvi library uses autofac for some DI bits and pieces, but I haven't been able to figure out how to inject a singleton instance of the IFilteredStream / FilteredStream class into my SignalR Hub class.

I only want one instance of IFilteredStream running, and would like to be able to access the MatchingTweetReceived lambda function from my SignalR Hub:

I don't really know what I'm doing wrong, or even if I'm on the right track to ensuring only one instance of the stream to Twitter is open using Autofac, and being able to access the tweet received lambda from my SignalR Hub class.